Calculating machine



2 Sheets-Sheet 1 0 r.. S ,C A E J nu IIIIII d www Ham/d Wwf/f @2d/0 March 3, 1942. H. w. CLARK l-n-AL CALCULATING MACHINE Filled Sept. 22, 1938 March 3, 1942 H. w. CLARK m-AL CALCULATING" MACHINE Filed Sept. 22, 1938 2 Sheets-Sheet 2 Patented Mar. 3, 1942 UNITED STATES PATENT OFFICE CALCULATING MACHINE y lllarold W.

Clark and Jordan W. Desenzo,

Alliance, Ohio, assignors to The MoCaakey Register Company, Alliance, Ohio, a corporation of Ohio Application September 22'. 1938, Serial No. 231,219

(Cl. 23S- 60) 2 Claims.

- l2, 1926, and of the specific type of accumulator illustrated and described in detail in Johantgen Patent No. 1,810,213, dated June 16, 1931.

The object of the present invention is to modify this general type of accumulator mechanism to make the same applicable to the type of McCaskey cash registers in which a bank of keys is provided on the left side oi the number keys of the high value, said bank oi keys being arranged to designate different codes, numbers or letters, or the like, as illustrated in Clark Pat-ent No. 2,098,486, dated November 9, 1937.

In machines of this particular type, when one of the code keys is depressed and the machine operated in usual manner, the particular code letter or other designation will be printed upon the usual record strip, but the accumulating or adding mechanism is not aected by the operation of one of these code keys, nor does the accumulator mechanism carry over from the next adjacent bank into the code bank.

Another object of the present invention is to improve this particular type of machine so that while the keys in the code bank may be operated as in the past to indicate any particular code letter or designation without operating the accumulator or adding mechanism, the accumulator will carry over from the next adjacent bank of number keys into the code bank so that a larger grand total may be obtained than is possible with the capacity of the banks of number keys upon the machine.

Another object is to provide a ilexible connection between the accumulator Wheel for the code bank and the usual sliding rack bar for operating that particular accumulator Wheel whereby depression oi' the code key and operation of the machine will not affect the accumulator mechanism, but whereby the accumulator may carry over from the next adjacent bank.

These objects may be attained by providing a separable two-part rack bar for the accumulator wheel of the code bank cooperating with pawl and ratchet means for holding the code accumulator wheel against rotation, upon operation of the machine for setting up an item until the accumulator section has moved back up to the normal position and the accumulator wheels have been disengaged from the rack bars.

As a modification o1' the invention the same objects may be attained by providing a. flexible .connected gear wheel upon the code accumulator wheel for engagement with the sliding rack bar of the usual construction.

These objects together with others which will be apparent from the drawings or which may be later referred to in the following description, may be accomplished by constructing the improved machine in the manner illustrated in the accompanying drawings in which:

Figure l is a top plan view of a calculating machine embodying the invention, parts being broken away for the purpose of illustration;

Fig. 2, a fragmentary transverse sectional view through the accumulator showing the parts in operated position;

Fig. 3, a similar view showing the parts in the initial or normal position;

Fig. 4, an enlarged edge elevation of the accumulator wheel for the code bank;

Fig. 5, an elevation of the type bar for the code bank;

Fig. 6, a section similar to Fig. 2 taken from the opposite side;

Fig. 7, a section similar to Fig. 6 showing the parts in the initial or normal position and showing the connection accumulator rack bar to the type bar; and

Figs. 8, 9, 10, and 11, are fragmentary sectional elevations showing a modified form of the invention.

Similar numerals refer to similar parts throughout the drawings.

The invention, as illustrated, is applied to a machine of the double key board type, although it should be understood that the invention is equally applicable to machines having the standard single key board.

Machines having the particular type of key board illustrated are coming into quite extensive use in many small business establishments where the transactions are comparatively small and where both cash and credit transactions are carried on and separate records kept of each, or where for some other reasons it is desirable to have two small registers for keeping two different kinds of accounts.

The particular machine illustrated is made especially for a grocery business and the uppermost key I5 of the left hand bank on the'key board may be a Received on account" key, while the remaining eight keys on said bank indicated at I3 are the usual department keys for a grocery business.

The next four banks of keys indicated at l1, I3, I9, and are the number keys making up this side of the key board having a registering capacity of $59.99, and as will later be explained, a totaling capacity of 3999.99.

On the right hand side oi' the key board are four similar banks of number keys indicated at 2|, 22, 23, and 24 having a registering capacity of $59.99 and a totaling capacity of 3999.99.

The bank of clerk letter keys or code keys indicated at comprises the left hand bank oi' the right side of the key board.

Totals from the banks 2i to 24, inclusive, are carried into the bank 25, and on the other side of the machine totals from the banks i1 to 2l, inclusive, are carried into the bank Il-Il. This is accomplished by the invention which will be hereinafter explained.

The usual total key 25 is provided for totaling on both sides of the key board as desired, and the usual paid out key 21 and charge key 23 may be provided for operating both sides of the key board as well as the usual error key 25.

As above mentioned the machine is of the general construction of Johantgen Patent No. 1,306,112, and the accumulator mechanism thereof is of the general construction oi.' Johantgen Patent No. 1,569,188.

Briey, this mechanism includes a plurality of key controlled reciprocable racks 33, corresponding in number and position to the banks o! keys, i'or actuating the register or accumulator wheels 3|. 'I'hese wheels are rotatably mounted upon a shaft 32 carried in a frame or carriage 33 which is oscillatable about a nxed axis 34.

A plurality of toothed carry-segments 35 cooperate with the register wheels and are oscillatable about a fixed axis 34.

The further construction and operation of the accumulator is generally the same as described in detail in said Patent No. 1,569,188, whereby the items are registered in the machine, carryovers are made from right to left through the several register wheels.

For the purpose of this invention it is only necessary to consider the fact that with each operation of the machine to register an item therein, the reciprocable racks are moved forward on the forward movement of the machine to the required positions out of contact with the gear wheels 31 upon the register wheels, while the frame 33 remains in the raised position as shown in Figs. 3 and 7, while on the backward movement of the machine, the frame 33 is oscillated downward to the position shown in Figs. 2 and 6, bringing the gear wheels into contact with the respective rack bars whereby the register wheels are rotated forwardly to the desired positions by the return movement of the racks.

In the usual operation of the machine, in obtaining a total, the frame 33 is oscillated downward so as to bring the gear wheels 31 into contact with the racks 30, whereby all of the register wheels are rotated backward to the initial or starting position so that the naught upon each register wheel is displayed through the windows 38.

In the present invention this accumulator mechanism is the same as in the patents referred to excepting that for the particular split type ot machine as shown in Figure l, the carry-over mechanism between the register wheel Ila for the bank 2l does not carry over to the wheel 3l' oi the bank 2l, and in order that the clerk or department key or the bank 2l may be operated to print the desired letter or other designation upon the usual record strip, while at the same time the resister wheel lia of this bank is used in obtaining a five column total from the right hand side `o! the key board, the invention consists in providing means whereby the operation of any key in the bank 2l will not affect the position oi the register wheel 3Ia of said bank.

In order te accomplish this purpose the register wheel 3|a of the bank 23, and the reciprocable rack 33 which cooperates with said register wheel may be constructed and arranged as illustrated in Pigs. 2 to 7, inclusive, of the drawings.

This is accomplished by forming the toothed portion 33a of this particular rack separable from the remainder oi the rack and mounting said separable toothed portion for horizontal reciprocation upon a guide plate "which is ilxed to any stationary portion of the machine and provided with the horizontal slot 4l within which the studs 4I carried by the separable end 35a of the rack are slidably mounted.

A spring 42 is attached to the forward end of the separable end 39a oi the rack and to any suitable stationary portion of the machine so as to normally urge the same backward or toward the main portion 3l of the rack.

A ratchet wheel 43 is fixed upon the side of the register wheel 3Ia and adapted to cooperate with a pawl 44 pivoted as at 45 to a stationary portion of the machine and adapted to be urged into engagement with the ratchet as by the spring 4l and stopped by the pin 45a in such position that the pawl will not engage the ratchet when the accumulator section is raised as shown in Fig. 3.

The type bars indicated at 41 are adapted te be operated by the sliding rack bars 3l in the same manner as illustrated and dcribed in de tail in Johantgen Patent No. 1,366,840, dated April 13', 1920.

The connection between each rack bar 33 and the corresponding type bar comprises a link 43 and a bell crank lever 43, as shown in Fig. 7, the several bell crank levers swinging in vertical planes upon a horizontal tie rod 53 which extends transversely through the machine.

One arm li of each bell crank lever has a pivotal connection with the corresponding type bar 41 at l2, the link 43 being connected to the other arm I3 of the bell crank lever.

In Fig. 5 is shown a front elevation of the type bar 41 for the bank 25, and it will be seen that in addition to the letters D, C, B, and A, this type bar has the numbers 0 to 5 thereon so that when the machine is operated to obtain a total for the right side of the key board, any of the numbers from 0 to 5 or the letters A, B, C, or D, may be recorded on the record strip ot the machine, the letters A, B, C, and D. representing the numerals 6, 7, 8, and 9, respectively, in such a total.

In operating the machine, to set up an item therein, any one of the clerk or department keys A, B, C, or D, may be depressed and when the machine is operated, ti .e rack 3| will be moved forward the proper distance corresponding to the key which has been depressed, moving with it the detached toothed portion 30a.

Upon the backward stroke the accumulator frame 33 will be rocked downward bringing the gear wheel 31 of the register wheel 3Ia into engagement with the teeth upon the detached portion 30a of the rack and at the same time the pawl u will engage the ratchet 43 of said register wheel 31a, as shown in Figs. 2 and 6.

The register wheel` `3Ia will thus be held against rotation and the detached tooth portion 30a of this rack will be held against movement as the main portion of the rack moves back to normal position, thus, preventing rotation of the register wheel 3 la of the bank 25.

If the next column to the right haspassed the 9 so that it sets the carrier trigger, then the wheel 3Ia will be rotated after the accumulator disengages.

However, when a total is taken, the accumulator frame 33 is immediately rocked downward moving the gears of the register wheels into contact with the teethof the racks and upon the forward movement of the racks the register wheel 3|a as well as all of the wheels 3l will be rotated back to the normal position as indicated in Fig. 1, the ratchet I3 of the register wheel Ila clicking backwards over the pawl 44.

The usual carry-over mechanism between the register wheels as described in J ohantgen Patent No. 1,810,213 is not provided between the register wheel 3Ia of the bank 25 and the register wheel 3| of the bank 20 for the reason it is not desired to carry over from the right hand side of the machine comprising the banks 2| to 25 to the left hand side of the machine comprising the banks |5-I6 to 20.

The carry-over mechanism illustrated and described in said Johantgen Patent No. 1,810,213, particularly in Figs. 6 to 10, inclusive, and described in detail starting with line 8, page 4, through line 44, page 5 of said J ohantgen patent, is provided between the other register wheels of the machine and as disclosed in said Johantgen patent, the carry takes place practically at the end of the actuation cycle, that is, just prior to the completion of the return stroke.

It should be understood that the register Wheel of the bank |5-I8 and theI sliding rack, which actuates the same, are of the exact same construction and operation as the rack and register wheel above described for the bank 25, whereby a total from the left side of the machine may be carried into the bank |5|6.

In Figs. 8 to 11, inclusive, is shown a modiiicaton of the idea in which the exible connection for the register wheel of the bank 25 is provided in the gear wheel of this register wheel and not in the rack bar. For this purpose the rack bar 30h indicated in Fig. 8, will be of the usual construction as shown in the prior patents above referred to, the toothed portion being formed integral of the remaining portion of the rack bar. In other words, this rack bar will be the same as all of the other rack bars in the machine.

The register wheel 3|b will be the same as the wheel Ila above described, and is provided with a ratchet 3b cooperating with a pawl Mb of the same construction and arrangement as above described.

The gear wheel is formed of two parts comprising a gear 31a fixed to the register wheel 3Ib and having a spring pressed plunger 54 mounted to protrude through its outer side for engagement with any one of the ten sockets 55 in the gear wheel 31h which is rotatable relative to the register wheel 31h and adapted to be engaged and actuated by the rack 30D.

With this construction the operation will be the same as above described, the pawl b holding the register wheel 3Ib against rotation on the backward movement of the rack bar, as when an item is registered upon the machine but permitting rotation of this register wheel on the forward movement of its rack bar as when a total is taken.

We claim:

1. In a calculating machine having a plurality of register wheels, a plurality of reciprocable racks for actuating said wheels respectively and means for moving the wheels into and out of engagement with the racks, one of said racks having a separable, toothed portion for engaging the corresponding wheel means for urging said separable toothed portion toward the remainder of the rack, and a pawl arranged to engage said wheel when it is moved into engagement with said separable, toothed portion of the rack for preventing rotation of said wheel only when said rack is moved in one direction.

2. In a calculating machine having a plurality of register wheels, a plurality of reciprocable racks for actuating said wheels respectively and means for moving the wheels into and out of engagement with the racks, one of the racks having a separable toothed portion for engaging the corresponding wheel, means for urging said separable toothed portion toward the remainder of the rack, a pawl pivoted upon a stationary part of the machine, a spring for urging the pawl toward said wheel, a tail upon the pawl, and a stop pin for contact with the tail for limiting the movement of the pawl so that the pawl will engage said wheel only when the wheel is moved into engagement with said separable toothed portion of the rack for preventing rotation oi said wheel only when said rack is moved in one direction.

HAROLD W. CLARK. JORDAN W. DEZENZO. 

